| abstract |
The invention belongs to the technical field of power equipment, in particular to a communication cable, comprising a wire core, an insulating layer, a thin film layer and an outer sheath; The inside of the receiving plate is distributed with uniform air bubbles; the receiving plate is filled with inert gas evenly spaced into the inside of the receiving plate during the extrusion molding process, thereby forming bubbles filled with inert gas; the insulating layer is wrapped in the cavity There is a wire core composed of a plurality of communication wires; the film layer is evenly covered on the surface of the insulating layer; the film layer is made of PET or fluororesin and has a thickness of 4 μm or more; the surface of the film layer is rough designed; the A filler is filled between the film layer and the outer sheath tube; the present invention isolates the external temperature from the interior by setting a cooling chamber inside the outer sheath tube, so as to avoid the inner insulating layer, the wire core, etc. being affected by high temperature and accelerate aging, This results in a reduction in the service life of the cable. |